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     differential equations corwersion, 514-515
        dual phase-variable form, 520-521, 523-524
     general state-space conversion, 515-517
        observability, 5 12-5 13
     oveNiew, 507
    phase-variable form, 513-518
      pole placement, 514. 518-520
     state variables, 507
     state-space represenration, 507-508, 509
      transfer function conversion, 517-518, 521
     transition matrix, 508-512
 state-space design, 522-525
 static margin, 203
 sUUic performance, 71-73
steady-state errors, 453-456
steady-state response, 447
 steady-state spin, 649-654
 steep spin, 648-649
 stick force, 230-235
stick-fixed maneuver point, 251-252
 stick-fixed neutral point, 201-203, 224-228,
              230-231, 251-252
 stick-free maneuver point, 252-253
 stick-free neutral point, 201-203, 230
 strakes, 739-743
 strip theory, 262-270, 299, 309, 390, 407-410
 Strouhal number, 8
 supersonic flow, 36-40
 surveillance aircraft, 106-107
 Swanson, W. M., 717-719
 Swedish Grippen, 674* 689
 Swedish (SAAB) Viggen, 689
765
swept-back wing aircraft, 52-54
    aerodynamic forces and, 204
      stability and, 173, 206-207, 266-270,
            298-299, 301
swept-forward wing aircraft 55-58
swept-wing aircraft, 47-52
   set ulso swept-back wing aircraft
symmetry plane, 321, 322
system responses
     compensators, 486-488
    feedback compensation, 493-494
     first-order systems, 446-447, 452
    frequency response, 456-458
     nonminimum phase systems, 452
     second-order systems, 447-452, 484-486
Systbme Intemational (SIX 109
T
tab, 219-220
tail, l94-198, 270-277, 302-304, 306
 railwinds,  I IO-I I I,  J 50
rakeoff
   aborted, 150-15I .
   turbome distance and time, 151-152
    crosswinds and, 297
   ground run, I46-I49
   hazrvds durrng, 156-158
   phases of, 146
   ume for, 149-150
Taylor series expansion, 3 L9, 376-377, 399
terminal flight phases, 592
thin airfoil stall, 23
thrust, 68-69. 198
thrust vector control, 746-749
time-domain parameters, 484-486
tip vortices, 32-34
trailing edges, 171-173, 210-220
trailing vorOces, 33
transfer function, 445-446, 596-597
    lateral-directional response and, 577-588
    longitudinal response and, 557-562
    state-space analysis ancl, 517-518, 521
transformaLion
   matrices, 323-326, 601-603
   vectors, 326-344
transient response, 447, 462, 493-494
transport aircraft, 126        .
trim condition, 167-168
trim drag, 204-205, 207
trim tab, 220, 228-230
trim, tail lift and, 203-207
turbojet aircraft. see jet aircraft
turbulent flow, 9-11, 12, 719, 721
tum rate,  I26-I28,  130-131, 135-138
turning flight
   categories, 122
   corner velocify turn, 138-139
     glider, J 34-136
    horizontal plane,  123-134
   jet aircraft, I30-I34    .
    load factor and, L29- 130. 133-134
766
turning flight (CtuU )
    motion equations, 122-123          '
    propeller aircrafi, 126-. 130
   sharpest sustained tum, 128-129, 132
   see also maneuvers
U
underdamped response, 448--449
 unit-impulse function, 442-443, 446
unity feedback systems, 453-456
upwash, 171-173
V
vectors, transformation of, 326-344
velocities, 2-3, 7-1 J
    endurance and, 115-116
    flight, 68-69
    navigational system, 334-337
    range and, 109-110
velocity vector roll, 736-737
vertical plane flight, motion equations af,
　
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